RKI Instruments AirLink 7543 Operator's Manual
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RKI Instruments AirLink 7543 Operator's Manual

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AirLink 7543 Gas Monitor
Operator's Manual
Part Number: 71-0537
Revision: P2
Released: 8/2/21
www.rkiinstruments.com

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Summary of Contents for RKI Instruments AirLink 7543

  • Page 1 AirLink 7543 Gas Monitor Operator’s Manual Part Number: 71-0537 Revision: P2 Released: 8/2/21 www.rkiinstruments.com...
  • Page 2 Product Warranty RKI Instruments, Inc. (Manufacturer) warrants its products to be free of defects in workmanship and materials—under normal use and service—for one year from the date of purchase from the manufacturer or from the product's authorized reseller. The manufacturer is not liable (under this warranty) if its testing and examination disclose that the alleged defect in the product does not exist or was caused by the purchaser's (or any third party's) misuse, neglect, or improper installation, testing or calibrations.

  • Page 3: Table Of Contents

    Mounting the AirLink 7543 Gas Monitor ........
  • Page 4 Register Map ..............38 4 • Product Warranty AirLink 7543 Gas Monitor Operator’s Manual...

  • Page 5: Chapter 1: Introduction

    Once the threshold value of a relay is reached, the relay is activated. However, the AirLink 7543 screen will not lock on the channel with a triggered relay while the reading is below the Relay Set Point (the user must scroll through the channels to find the channel with a triggered relay).

  • Page 6: About This Manual

    About this Manual The AirLink 7543 Gas Monitor Operator’s Manual uses the following conventions for notes, cautions, and warnings: NOTE: Describes additional or critical information. CAUTION: Describes potential damage to equipment. WARNING: Describes potential danger that can result in injury or death.

  • Page 7: Specifications

    Specifications Table 1 lists specifications for the AirLink 7543. Table 1: AirLink 7543 Specifications Description Specification Input Power 110/240 VAC 12 - 35 VDC Current Draw 275 mA max Operating Temperature -40°F to 158°F (-40°C to 70°C) Input Signal • Up to 6 WireFree sensor assemblies Output •...

  • Page 8: Chapter 2: Description

    Chapter 2: Description Front Panel Figure 1: Front Panel 8 • Chapter 2: Description AirLink 7543 Gas Monitor Operator’s Manual...

  • Page 9: Terminal Board

    Terminal Board Figure 2: Terminal Board AirLink 7543 Gas Monitor Operator’s Manual Chapter 2: Description • 9...

  • Page 10: Internal Components

    Internal Components Note: Delta power supply only included with AC-powered version. Figure 3: Internal Components 10 • Chapter 2: Description AirLink 7543 Gas Monitor Operator’s Manual...

  • Page 11: Chapter 3: Installation

    2. Close and latch the housing door. 3. Prepare the selected mounting site as required to mount the AirLink 7543. It should be mounted at eye level (4 1/2 to 5 feet from the floor). Refer to Figure 4 for the outline and mounting dimensions.
  • Page 12 Ø .3 x .2 18.9 16.6 20.8 18.5 10.2 10.1 900 MHz Version 2.4 MHz Version Figure 4: Outline and Mounting Dimensions 12 • Chapter 3: Installation AirLink 7543 Gas Monitor Operator’s Manual...

  • Page 13: Wiring The Airlink 7543 Gas Monitor

    CAUTION: The internal components can be static sensitive. Use caution when opening the enclosure and handling internal components. WARNING: Make all connections to the AirLink 7543 before you plug in or turn on the AC or DC power source. Before you make any wiring adjustments, always verify that all power sources are not live.
  • Page 14 9. Clamp down the enclosure latches. Connecting an AC Power Source NOTE: The AirLink 7543 is configured for AC or DC operation, depending on how it is ordered. If you are using DC power as the primary power source, go to the previous section, “Connecting a DC Power Source”.
  • Page 15 Delta power supply terminals “L” (AC Load IN), “N” (AC Neutral IN), and “EG” (Chassis GND or Earth GND). This set of wires will be used to plug into an AC power outlet ONCE ALL WIRING CONFIGURATIONS ARE COMPLETE. AirLink 7543 Gas Monitor Operator’s Manual Chapter 3: Installation • 15...
  • Page 16 Connect a ground wire from the AC power source to the power supply’s “EG” terminal. NOTE: If the AirLink 7543 was not ordered with any housing holes, at least one hole will have to be drilled to bring in AC power.
  • Page 17 8. Plug the DB-9 connector into a PLC. Figure 7: Modbus Out Wiring 9. Close the Front Panel. 10. Screw in the thumb-screws. 11. Close the enclosure box. 12. Clamp down the enclosure latches. AirLink 7543 Gas Monitor Operator’s Manual Chapter 3: Installation • 17...
  • Page 18 WirelessHART Setup If the AirLink 7543 was ordered with WirelessHART, a module will be installed on the Terminal Board and the Modbus output will not be user-accessible. 1. Drill a hole in the housing and install the 2.4 GHz WirelessHART antenna. If the antenna receiving the detector signal is also a 2.4 GHz antenna, then remote either the receiving antenna or the...
  • Page 19 4. Locate the Fault Terminal Block on the terminal board. 5. Connect a positive (red) wire to the terminal labeled “+”. 6. Connect a negative (black) wire to the terminal labeled “-”. Figure 8: Fault Indicator Wiring AirLink 7543 Gas Monitor Operator’s Manual Chapter 3: Installation • 19...
  • Page 20 Relay Wiring The AirLink 7543 has four relays. Two relays are intended for gas alarms, one relay can be used for gas alarms or a fault condition, and one relay is a dedicated fault relay. Each of the four relays may be setup as Normally Open (NO) or Normally Closed (NC).

  • Page 21: Chapter 4: Startup And Operation

    Chapter 4: Startup and Operation Power On/Off When power is first applied to the AirLink 7543, the unit automatically powers on and begins the startup sequence. The AirLink 7543 will automatically power off when voltage is no longer applied to the unit.

  • Page 22: Led Functionality

    An alarm condition has occurred on relay 3, but condition has now gone 1. Press and release MENU to clear an alarm indication once the alarm condition has cleared. 22 • Chapter 4: Startup and Operation AirLink 7543 Gas Monitor Operator’s Manual...

  • Page 23: Chapter 5: Setup Mode

    NOTE: To save any changes and exit Setup Mode at any time, press ADD or SUB until you get to the Information Screen and then press MENU. The AirLink 7543 automatically saves any changes and returns to Normal Operating Mode 15 minutes after the last button press.

  • Page 24: Relay Settings

    3. Relay Increasing/Decreasing: Press ADD or SUB to manipulate the relay's Increasing/Decreasing status. 4. Press MENU (next). 5. Relay Threshold: Press ADD (increase) or SUB (decrease) to manipulate the threshold value (1- 65,000). 6. Press MENU (Next). AirLink 7543 Gas Monitor Operator’s Manual Chapter 5: Setup Mode • 24...

  • Page 25: View System Information

    Press ADD (Yes) to duplicate the settings to all consecutive channels—and ADD (Yes) again to confirm the operation View System Information After the last channel is set, press MENU to view the system's information. 25 • Chapter 5: Setup Mode AirLink 7543 Gas Monitor Operator’s Manual...

  • Page 26: Exiting Setup Mode

    1. From the System Information screen, press MENU to exit Setup Mode. 2. Close the enclosure box. 3. Clamp down the enclosure latches. NOTE: The AirLink 7543 automatically saves any changes and returns to Normal Operating Mode 15 minutes after the last button press. AirLink 7543 Gas Monitor Operator’s Manual...

  • Page 27: Chapter 6: Advanced Configuration Menu

    Press MENU again to confirm the restart. 3. When the RKI Logo appears on the Display Screen, press MENU. NOTE: The AirLink 7543 automatically saves any changes and returns to Normal Operating Mode 15 minutes after the last button press.

  • Page 28: Relay Setup

    3. Failsafe: Press ADD or SUB (Yes/No—as indicated on the display screen) to setup Relay 1 as failsafe (or not failsafe). To leave the setting as it is, press MENU (Next). 4. Repeat step 3 for Relays 2 and 3. AirLink 7543 Gas Monitor Operator’s Manual Chapter 6: Advanced Configuration Menu • 28...

  • Page 29: Modbus Setup

    4. Global Baud: Press ADD (increase) or SUB (decrease) to manipulate the global Baud setting to: 4800, 9600, or 19200. NOTE: Baud default is 9600. If using WirelessHART, the Modbus baud must be set to 19200. 5. Press MENU (Next). 29 • Chapter 6: Advanced Configuration Menu AirLink 7543 Gas Monitor Operator’s Manual...

  • Page 30: Wirefree Setup

    NOTE: There can only be one Primary monitor on a network. All other monitors must be set up as Secondary monitors. If an AirLink 7543 is set as a Secondary monitor when there is no Primary monitor, the AirLink 7543 will go into a Fault 15 status.

  • Page 31: Chapter 7: Maintenance

    3. Starting with Relay 1, the relays will activate in 5-second intervals. Continue to hold MENU and SUB. 4. Release MENU and SUB. 5. To return to Normal Operating Mode, press and release MENU. 6. Close the enclosure box. 7. Clamp down the enclosure latches. 31 • Chapter 7: Maintenance AirLink 7543 Gas Monitor Operator’s Manual...

  • Page 32: Troubleshooting

    Table 2 describes symptoms, probable causes, and recommended actions for the most common problems you may encounter with the AirLink 7543. NOTE: This troubleshooting guide describes AirLink 7543 problems only. See the detector head operator’s manuals for preventive maintenance procedures that apply to the detector heads installed on your AirLink 7543.
  • Page 33 Table 2: Troubleshooting the AirLink 7543 (Continued) Condition Probable Causes Recommended Action The monitor has not received a 1. Check the sensor assembly for a communication from the faulting sensor dead battery, broken antenna, bad assembly address for the timeout period set antenna cable, missing antenna, on page 30.

  • Page 34: Chapter 8: Parts List

    Chapter 8: Parts List Table 3 lists the part numbers and descriptions for replacement parts and accessories offered for the AirLink 7543 Gas Monitor. Table 3: Parts List, AirLink 7543 Gas Monitor Part No. Description 18-0107RK Conduit hub (3/4 in.)

  • Page 35: Appendix A: Relay Operation

    When using a Wet Contact Relay, power should run through the “COMM” terminal to the end equipment. Figure 11: “Dry” Contact Relay Configured as a “Wet” Contact 35 • Appendix A: Relay Operation AirLink 7543 Gas Monitor Operator’s Manual...
  • Page 36 The NC (normally closed) relay contacts are open during non-alarm operation and close when the appropriate alarm condition occurs. Figure 12: Relay Circuit Schematic AirLink 7543 Gas Monitor Operator’s Manual Appendix A: Relay Operation • 36...

  • Page 37: Appendix B: Rs-485 Modbus Output

    Start Address: The first register the user would like to view (must be between 1-255) Length: Depends on the number of addresses the user would like to view Scan Rate:1000 ms Data Format: Hex, Decimal, Float 37 • Appendix B: RS-485 Modbus Output AirLink 7543 Gas Monitor Operator’s Manual...

  • Page 38: Register Map

     1 , 78  5 % 6 ,/ $ + 5 / . -/ ,   $2 *) # + , ,   $2  -.  / ' 0 AirLink 7543 Gas Monitor Operator’s Manual Appendix B: RS-485 Modbus Output • 38...
  • Page 39 $ , / < /   !"#  $ -.9  +++   $ , / < /   !"#  $ -.9  +++   39 • Appendix B: RS-485 Modbus Output AirLink 7543 Gas Monitor Operator’s Manual...
  • Page 40  08 . $   ! *) # +  8+ .  08 . $   ! *) # +  8+ .  08 . AirLink 7543 Gas Monitor Operator’s Manual Appendix B: RS-485 Modbus Output • 40...
  • Page 41  . + ) /  ,-22 $ 3 / !"#  ,-22 $ % / % /6  ! .0  6+61   41 • Appendix B: RS-485 Modbus Output AirLink 7543 Gas Monitor Operator’s Manual...
  • Page 42   *  (.   *   *  5 * 9   *:; " + *  .* 9"0  *:; !' *   * *  6 & ' 6 AirLink 7543 Gas Monitor Operator’s Manual Appendix B: RS-485 Modbus Output • 42...
  • Page 43 % '3 3 96.5 &? ?#; !3 96.5 &? ?#; ! 96.5 &? ?#;    :> 96.5 &? ?#;   96.5 &? ?#; ?? 6 7 43 • Appendix B: RS-485 Modbus Output AirLink 7543 Gas Monitor Operator’s Manual...

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